Anne and maria play tennis almost every weekend. so far, anne has won 12 out of 20 matches. how many matches will anne have to win in a row to improve her winning percentage to 75%?

Evaluate the following expression 1/3^2

What is the binomial expansion of (2x-3)^5

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain